drivers/media/pci/mantis/mantis_uart.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3         Mantis PCI bridge driver
   4
   5         Copyright (C) Manu Abraham (abraham.manu@gmail.com)
   6
   7 */
   8
   9 #ifndef __MANTIS_UART_H
  10 #define __MANTIS_UART_H
  11
  12 #define MANTIS_UART_CTL                 0xe0
  13 #define MANTIS_UART_RXINT               (1 << 4)
  14 #define MANTIS_UART_RXFLUSH             (1 << 2)
  15
  16 #define MANTIS_UART_RXD                 0xe8
  17 #define MANTIS_UART_BAUD                0xec
  18
  19 #define MANTIS_UART_STAT                0xf0
  20 #define MANTIS_UART_RXFIFO_DATA         (1 << 7)
  21 #define MANTIS_UART_RXFIFO_EMPTY        (1 << 6)
  22 #define MANTIS_UART_RXFIFO_FULL         (1 << 3)
  23 #define MANTIS_UART_FRAME_ERR           (1 << 2)
  24 #define MANTIS_UART_PARITY_ERR          (1 << 1)
  25 #define MANTIS_UART_RXTHRESH_INT        (1 << 0)
  26
  27 enum mantis_baud {
  28         MANTIS_BAUD_9600        = 0,
  29         MANTIS_BAUD_19200,
  30         MANTIS_BAUD_38400,
  31         MANTIS_BAUD_57600,
  32         MANTIS_BAUD_115200
  33 };
  34
  35 enum mantis_parity {
  36         MANTIS_PARITY_NONE      = 0,
  37         MANTIS_PARITY_EVEN,
  38         MANTIS_PARITY_ODD,
  39 };
  40
  41 struct mantis_pci;
  42
  43 extern int mantis_uart_init(struct mantis_pci *mantis);
  44 extern void mantis_uart_exit(struct mantis_pci *mantis);
  45
  46 #endif /* __MANTIS_UART_H */